Temporarily and permanently sealable envelope or the like

Details Temporarily and permanently sealable envelope or the like Temporarily and permanently sealable envelope or the like

1987-03-16

1988-04-19

Little, Willis

Envelopes, wrappers, and paperboard boxes

Envelope

Closures

229 68R, 229 82, B65D 2714

Patent

active

047383917

ABSTRACT:
A selectively temporarily and/or permanently sealable envelope or the like having a flap provided with a layer of wettable dry adhesive, a tab extending from the flap and having a layer of pressure sensitive adhesive, and means for selectively masking off, concealing and protecting the layer of pressure sensitive adhesive whereby the closure flap is selectively releasably securable to the container body by the pressure sensitive adhesive and is permanently securable to the container body by the wettable adhesive.

REFERENCES:
patent: 2224604 (1940-12-01), Miehlke
patent: 2367440 (1945-01-01), Schieman
patent: 2400406 (1946-05-01), Godoy
patent: 2476740 (1949-07-01), Krall
patent: 2601946 (1952-07-01), Heywood
patent: 3265289 (1966-08-01), Hiersteiner
patent: 3702171 (1972-11-01), Levine
patent: 4192448 (1980-03-01), Porth

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